Hello,

I am working on my own variant of a del.icio.us import AppleScript
into Yojimbo, using the extended scripting features of the latest
version. I am trying to identify if a web archive already exists for
a given URL using the following...

set post_description to "Some description"
set post_url to "http://someurl"
tell application "Yojimbo"
if not (exists web archive item post_description) and not (exists
web archive item post_url) then
make new web archive item with contents post_url
end if
end tell

The above fragment is actually in a loop where my various del.icio.us
posts are retrieved, etc. I find it works brilliantly the first time,
importing all my existing del.icio.us bookmarks as web archives.
However, the second time I run it, it incorrectly identifies about a
quarter of the bookmarks as not already existing, hence duplicates
are created. Subsequent runs also fail to correctly identify URLs/
descriptions that have already been imported.

It is unclear from the Yojimbo AppleScript dictionary exactly which
field of a web archive item the 'exists' operator matches again,
although maybe this can be defined. It is my first attempt at a
largish AppleScript so I might have gotten something wrong (FYI, I am
otherwise an experienced Java developer).

Cheers,
James W.

--
James Webster SA Fin
blog: http://www.thenewsbeforethenews.com photos: http://flickr.com/
photos/jim

On Jan 10, 2007, at 8:45 AM, James Webster wrote:

> It is unclear from the Yojimbo AppleScript dictionary exactly which
> field of a web archive item the 'exists' operator matches again[sic]

Sorry if this is dry and technical, but I want to be precise :-)

Exists test against the existence of the object whose specifier follows.

exists specifier

When you write

exists (web archive item post_description)

the specifier is for a web archive item whose name is
post_description. Later you test again, using the post_url, but I'm
guessing you weren't intending to test the name twice.

If you want to test to see if you have a web archive for that URL,
you need to write a different specifier.

set post_url to "http://www.barebones.com/"
tell application "Yojimbo"
exists (every web archive item whose source URL is post_url)
end tell

Also, beware that the source URL may be normalized as a result of a
redirect when downloading, etc.

Jim




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